[我有一个应用程序，它在带有]的payara 4.1.9.2上使用JSF 2.2>
<context-param> <param-name>javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL</param-name> <param-value>true</param-value> </context-param>这里一切都按预期工作。
现在，我试图将其更新为与Mojarra 2.3.9.payara-p3一起运行的Payara 5.1.9.3。
我现在面临的问题是，如果在创建bean时使用参数设置为f：viewParam的ViewScope
bean用来触发ajax请求，则viewParams会丢失（正常）并且该模型已使用NULL值更新。因此，最初的viewParams工作正常，从GET获取值，并相应地设置了模型。当在UPDATE_MODEL_VALUES PHASE中触发第一个ajax请求时，将bean属性值设置为旧值（确定），但是在阶段4的第二个ajax请求中，属性值也更新为NULL。
我知道有关此主题的文章很多（f：viewParams在ajax请求中丢失了，但是我不清楚的是：
为什么要禁用javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL指令，一切正常，如果不再启用它，
PS。与Payara 4.1.2.174和Mojarra 2.2.14一起工作
更新：
这里有counter.xhtml的视图
<ui:composition template="../layouts/user.xhtml"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui"
xmlns:sec="http://www.springframework.org/security/tags">
<f:metadata>
<f:viewParam name="id" value="#{counterMB.id}"/>
</f:metadata>
<ui:param name="currentMB" value="#{counterMB}"/>
<ui:define name="title">Counter </ui:define>
<h:form id="myForm">
Id is <h:outputText value="#{counterMB.id}" id="outputTxt"/>
<p:commandLink
action="#{counterMB.incrementCounter()}"
value="Increment"
update="outputTxt"
/>
<input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/>
</h:form>
和bean：
@Named @Scope("view") public class CounterMB extends GenericMB implements Serializable{ private static final long serialVersionUID = 1L; private Integer id; public Integer getId() { return id; } public void setId(Integer id) { System.out.println("Setting the id with:"+id); this.id = id; } public void incrementCounter() { id = id +1; // do something with id System.out.println("Id is="+Integer.toString(id)); } }和一些日志：
http://localhost:8080/myapp/counter.xhtml?id=4 (LifecycleListener.java:22) - START PHASE RESTORE_VIEW 1 (LifecycleListener.java:26) - END PHASE RESTORE_VIEW 1 (LifecycleListener.java:22) - START PHASE APPLY_REQUEST_VALUES 2 (LifecycleListener.java:26) - END PHASE APPLY_REQUEST_VALUES 2 (LifecycleListener.java:22) - START PHASE PROCESS_VALIDATIONS 3 (LifecycleListener.java:26) - END PHASE PROCESS_VALIDATIONS 3 (LifecycleListener.java:22) - START PHASE UPDATE_MODEL_VALUES 4 2019-10-24T13:43:52.573+0000|Info: Setting the id with:4 (LifecycleListener.java:26) - END PHASE UPDATE_MODEL_VALUES 4 (LifecycleListener.java:22) - START PHASE INVOKE_APPLICATION 5 (LifecycleListener.java:26) - END PHASE INVOKE_APPLICATION 5 (LifecycleListener.java:22) - START PHASE RENDER_RESPONSE 6 (LifecycleListener.java:26) - END PHASE RENDER_RESPONSE 6 //click on increment 1st time (LifecycleListener.java:22) - START PHASE RESTORE_VIEW 1 (LifecycleListener.java:26) - END PHASE RESTORE_VIEW 1 (LifecycleListener.java:22) - START PHASE APPLY_REQUEST_VALUES 2 (LifecycleListener.java:26) - END PHASE APPLY_REQUEST_VALUES 2 (LifecycleListener.java:22) - START PHASE PROCESS_VALIDATIONS 3 (LifecycleListener.java:26) - END PHASE PROCESS_VALIDATIONS 3 (LifecycleListener.java:22) - START PHASE UPDATE_MODEL_VALUES 4 2019-10-24T13:44:07.013+0000|Info: Setting the id with:4 (LifecycleListener.java:26) - END PHASE UPDATE_MODEL_VALUES 4 (LifecycleListener.java:22) - START PHASE INVOKE_APPLICATION 5 2019-10-24T13:44:07.014+0000|Info: Id is=5 (LifecycleListener.java:26) - END PHASE INVOKE_APPLICATION 5 (LifecycleListener.java:22) - START PHASE RENDER_RESPONSE 6 (LifecycleListener.java:26) - END PHASE RENDER_RESPONSE 6 // click on icrement the second time (LifecycleListener.java:22) - START PHASE RESTORE_VIEW 1 (LifecycleListener.java:26) - END PHASE RESTORE_VIEW 1 (LifecycleListener.java:22) - START PHASE APPLY_REQUEST_VALUES 2 (LifecycleListener.java:26) - END PHASE APPLY_REQUEST_VALUES 2 (LifecycleListener.java:22) - START PHASE PROCESS_VALIDATIONS 3 LifecycleListener.java:26) - END PHASE PROCESS_VALIDATIONS 3 (LifecycleListener.java:22) - START PHASE UPDATE_MODEL_VALUES 4 2019-10-24T13:44:12.548+0000|Info: Setting the id with:null (LifecycleListener.java:26) - END PHASE UPDATE_MODEL_VALUES 4 (LifecycleListener.java:22) - START PHASE INVOKE_APPLICATION 5 2019-10-24T13:44:12.549+0000|Warning: #{counterMB.incrementCounter()}: java.lang.NullPointerException javax.faces.FacesException: #{counterMB.incrementCounter()}: java.lang.NullPointerException at com.sun.faces.application.ActionListenerImpl.getNavigationOutcome(ActionListenerImpl.java:96) at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:71) at org.springframework.faces.webflow.FlowActionListener.processAction(FlowActionListener.java:71) at org.springframework.faces.model.SelectionTrackingActionListener.processAction(SelectionTrackingActionListener.java:64) at org.primefaces.application.DialogActionListener.processAction(DialogActionListener.java:54) at javax.faces.component.UICommand.broadcast(UICommand.java:222) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:847) at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1395) at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:58) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:76) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:177) at javax.faces.webapp.FacesServlet.executeLifecyle(FacesServlet.java:707) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:451) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1628) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:339) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:209) at org.glassfish.tyrus.servlet.TyrusServletFilter.doFilter(TyrusServletFilter.java:305) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:251) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:209) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:124) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:155) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:251) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:209) at org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:251) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:209) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:755) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:575) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:159) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:371) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:238) at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:520) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:217) at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:182) at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:156) at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:218) at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:95) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:260) at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:177) at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:109) at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:88) at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:53) at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:524) at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:89) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:94) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:33) at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:114) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:569) at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:549) at java.lang.Thread.run(Thread.java:748) Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException at com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:76) at com.sun.faces.application.ActionListenerImpl.getNavigationOutcome(ActionListenerImpl.java:82) ... 82 more Caused by: java.lang.NullPointerException at com.myapp.jsf.user.CounterMB.incrementCounter(CounterMB.java:34) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at javax.el.ELUtil.invokeMethod(ELUtil.java:263) at javax.el.BeanELResolver.invoke(BeanELResolver.java:494) at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:215) at com.sun.el.parser.AstValue.invoke(AstValue.java:285) at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304) at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:65) at com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:66) ... 83 more 2019-10-24T13:44:12.551+0000|Info: INFO [http-thread-pool::http-listener-1(2)] (LifecycleListener.java:26) - END PHASE INVOKE_APPLICATION 5解决方法是在f：viewParam上渲染=“＃{not facesContext.postback}”，但我认为这不是正确的行为。
更新：在Kukeltje sugestion中，我尝试了使用@ViewScoped的普通JSF应用程序，它可以按预期工作。在isght中，我将继续添加primefaces和spring和....，我在当前应用程序中尝试模拟的所有内容现在的情况。
更新：
之所以使用普通jsf，是因为h：commandLink并未发出ajax请求。我可以用以下文件重现它：
`
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:p="http://primefaces.org/ui"> <h:head> <f:facet name="first"> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> </f:facet> <title> Simulator - Counter rest</title> </h:head> <h:body> <f:metadata> <f:viewParam name="id" value="#{counterMB.id}"/> </f:metadata> <h:form id="myForm"> Id is <h:outputText value="#{counterMB.id}" id="outputTxt"/> <h:commandButton value="Increment"update="outputTxt"> <f:ajax listener="#{counterMB.incrementCounter()}" execute="myForm" render="outputTxt"/> </h:commandButton> </h:form> </h:body> </html>`和这个豆
import java.io.Serializable;
import javax.faces.view.ViewScoped;
import javax.inject.Named;
@Named
@ViewScoped
public class CounterMB implements Serializable{
private static final long serialVersionUID = 1L;
private Integer id;
public Integer getId() {
return id;
}
public void setId(Integer id) {
System.out.println("Setting the id with:"+id);
this.id = id;
}
public void incrementCounter() {
id = id +1;
System.out.println("Id is="+Integer.toString(id));
}
}
我有一个应用程序，它在payara 4.1.9.2上使用JSF 2.2，并带有